Enhanced tensile strength and high ductility in cryomilled commercially pure titanium

被引：70

作者：

Ertorer, Osman ^{[1
]}

Topping, Troy ^{[1
]}

Li, Ying ^{[1
]}

Moss, Wes ^{[2
]}

Lavernia, Enrique J. ^{[1
]}

机构：

[1] Univ Calif Davis, Dept Chem Engn & Mat Sci, Davis, CA 95616 USA

[2] Toyota Racing Dev, Costa Mesa, CA 92626 USA

来源：

SCRIPTA MATERIALIA | 2009年 / 60卷 / 07期

关键词：

Titanium; Cryomilling; Mechanical properties; Microstructure; Nanostructured materials; SEVERE PLASTIC-DEFORMATION; MECHANICAL-BEHAVIOR; NANOSTRUCTURED MATERIALS; NANOCRYSTALLINE METALS; AL-ALLOY; TI; MICROSTRUCTURE; ECAP; NANOMATERIALS; ROUTES;

D O I：

10.1016/j.scriptamat.2008.12.017

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The room temperature tensile behavior of cryomilled and quasi-isostatically forged commercially pure (CP)-Ti was investigated. Enhanced tensile strength (yield strength = 840 MPa, ultimate tensile strength = 902 MPa) in combination with high ductility (elongation to failure = 27.5%) was observed. This mechanical behavior is rationalized on the basis of processing history, microstructure (multimodal grain distribution, high-angle grain boundaries, high dislocation density) and chemistry. Relevant mechanisms are discussed and the results compared to those reported in earlier studies. (C) 2008 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：586 / 589

页数：4

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